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Unicode C

Test Salesforce OAuth2 Access Token

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Demonstrates how to make a simple Salesforce REST API call to test a previously obtained access token.

Chilkat Unicode C Downloads

Unicode C
#include <C_CkHttpW.h>
#include <C_CkJsonObjectW.h>
#include <C_CkStringBuilderW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkHttpW http;
    HCkJsonObjectW json;
    HCkStringBuilderW sbUrl;
    HCkStringBuilderW sbResponseBody;
    HCkJsonObjectW jsonResponse;

    success = FALSE;

    // This example does the following:

    // curl -X GET https://yourInstance.salesforce.com/services/oauth2/userinfo \
    //      -H "Authorization: Bearer YOUR_ACCESS_TOKEN"

    http = CkHttpW_Create();

    // Use the following online tool to generate HTTP code from a CURL command
    // Convert a cURL Command to HTTP Source Code

    // This example assumes the OAuth2 access token was previously fetched 
    // and saved to a file.  See Get SalesForce OAuth2 Access Token via Authorization Flow

    json = CkJsonObjectW_Create();
    success = CkJsonObjectW_LoadFile(json,L"qa_data/tokens/_salesforce.json");
    if (success == FALSE) {
        wprintf(L"Failed to load OAuth2 access token.\n");
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(json);
        return;
    }

    // Here's an example of the JSON:

    // {
    //   "access_token": "00D41000....uLZBpT6",
    //   "refresh_token": "5Aep....25xdGgkrV",
    //   "signature": "cjTbSc5DvcKpaMoRTzuQTJLb1tcMw8LEO01flq4aMD4=",
    //   "scope": "refresh_token id",
    //   "instance_url": "https://d41000000f8a0eak-dev-ed.my.salesforce.com",
    //   "id": "https://login.salesforce.com/id/00D41000000F8A0EAK/005410000....xAAE",
    //   "token_type": "Bearer",
    //   "issued_at": "1738348388166"
    // }

    // Adds the "Authorization: Bearer YOUR_ACCESS_TOKEN" header.
    CkHttpW_putAuthToken(http,CkJsonObjectW_stringOf(json,L"access_token"));

    // We want to build the following URL:  https://<instance_id>.salesforce.com/services/oauth2/userinfo
    sbUrl = CkStringBuilderW_Create();
    CkStringBuilderW_Append(sbUrl,CkJsonObjectW_stringOf(json,L"instance_url"));
    CkStringBuilderW_Append(sbUrl,L"/services/oauth2/userinfo");

    sbResponseBody = CkStringBuilderW_Create();
    success = CkHttpW_QuickGetSb(http,CkStringBuilderW_getAsString(sbUrl),sbResponseBody);
    if (success == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(json);
        CkStringBuilderW_Dispose(sbUrl);
        CkStringBuilderW_Dispose(sbResponseBody);
        return;
    }

    wprintf(L"Response status code = %d\n",CkHttpW_getLastStatus(http));

    jsonResponse = CkJsonObjectW_Create();
    CkJsonObjectW_LoadSb(jsonResponse,sbResponseBody);
    CkJsonObjectW_putEmitCompact(jsonResponse,FALSE);
    wprintf(L"%s\n",CkJsonObjectW_emit(jsonResponse));

    // The expected JSON response is something like this:

    // {
    //   "sub": "005xxxxxxxxxxxx",
    //   "name": "John Doe",
    //   "preferred_username": "johndoe@example.com",
    //   "email": "johndoe@example.com",
    //   "profile": "https://na85.salesforce.com/005xxxxxxxxxxxx"
    // ...
    // ...
    // }


    CkHttpW_Dispose(http);
    CkJsonObjectW_Dispose(json);
    CkStringBuilderW_Dispose(sbUrl);
    CkStringBuilderW_Dispose(sbResponseBody);
    CkJsonObjectW_Dispose(jsonResponse);

    }